Hook



I v 21 M T..J. BOND. HOOK.

APPLICATION FILED APR. 8. I'BZI'.

1,398,887; Patented Nov. 29,- 1921.

2 SHEETS-SHEET 2.

l NVE NTOR V ATTORNEY WITNESS:

warren sraras PATENT @ZFFEQE.

THOMAS J'. BOND, OF GADSDEN, ALABAMA.

HOOK.

To all whom it may concern.

Be it known that I, THOMAS J. BOND, a citizen of the United States,residin at Gadsden, in the county of Etowah and State of Alabama, haveinvented new and useful Improvements in Hooks, of which the following isa specification.

This invention comprehends the provision of a safety hook, wherein useis made of a locking element associated with the hook for rotary andsliding movement and designed to be effectively held in an activeposition,

necessitating the rotation of the locking element before it can be movedtoits active or inactive positions.

The nature and advantages of the invention will be better understoodwhen the following detailed description is read in connection with theaccompanying drawings, the invention residing in the combination,construction, and arrangement of parts as claimed.

In the drawings forming part of this application, like numerals ofreference indicate similar parts in the several views and wherein:

Figure 1 is a side elevation of the hook constructed in accordance withmy invention.

Fig. 2 is a top plan view thereof.

Fig. 3 is a sectional view taken on line 3--3 of Fig. 2.

Fig. 4. is a view similar to Fig. 2 with the retaining plate and latchelement removed.

Fig. 5 is a detail view of the locking element.

Fig. 6 is a similar view of the latch.

Fig.7 is a detail view of the retaining plate.

Referring to the drawings in detail, 10 indicates a hook of thewellknown construction and design, except that the shank of the hook isprovided with a raised portion 11 having a longitudinal bore or passage12 which receives the locking element illustrated in Fig. 5. The bill ofthe hook is provided with a recess 14: which receives the adjacent endof the locking element when the latter is in an active position. Thethickened portion 11 of the hook is recessed as at 15, and the bottomwall of this recess is inclined as at 16 in the direction of the bill ofthe hook, the bore above referred to opening into the recess so as toexpose the locking element 13 as illustrated in Fig. 4E.

The locking element 13 is notched as at 17,

Specification of Letters Patent. Patented NQV, 29,1921,

Application filed April 8, 1921.

Serial No. 459,583.

with the cross piece 18 screwed or otherwisesuitably secured to theenlargement 11, while the stem 19 of the latch element is arranged uponthe inclined bottom of the recess, and of sufficient length to engagethe notch 17 of the locking element, to prevent the latter from beingmoved longitudinally through the enlargement 11 away from the bill ofthe hook, until the locking element has been first rotated to move thenotch 17 away from the latch element. The recess in the enlargement isclosed by a plate 20 which is provided with a flange 21 engaging theshoulders 22 formed by the opposed walls of the recess, and againstwhich shoulders the head of the latch element also bears. The plate 20is secured in position by means of suitable fastening elements 22.

In practice, the locking element 13, which is formed with an enlargedextremity 13 is arranged within the bore of the enlarged portion 11 ofthe hook, for both sliding and rotary movement. When it is desired toarrange the locking element in an active position, it is moved in adirection of the bill of the hook until it contacts the latter, thismovement of the locking element positioning the notch 17 adjacent theend wall of the recess, and in a position where it receives the adjacentend of the latch element. The locking element however, must be rotatedto present the notch to the latch element. When it is desired to movethe locking element to an inactive position, or in other words to openthe hook, the locking element must be rotated to position the notch 17wholly within the bore, after which the locking element may beretracted. The locking element '13 is provided with an annular shoulder13 at an appropriate point in its length, and which shoulder is adaptedto come in contact with the adjacent end of the latch element when thelocking element is retracted, thereby limiting the movement of thelocking element in this direction and preventing casual separation fromthe shank of the hook.

While it is believed that from the fore going description the nature andadvantages of the invention will be readily apparent, I desire to haveit understood that I do not limit myself to what is herein shown anddescribed, and that such changes may be re- 5 sorted to when desired asfall within the scope of what is claimed.

What I claim is:

1. In combination, a hook including a shank, said shank having alongitudinal bore, a locking element arranged within the bore for bothsliding and rotary movement, said shank havlng a recess with an 1nclinedbottom, a latch element arranged within said recess, said bottomintersecting said bore whereby a portion of the latch element is exposedwithin the recess and adapted to engage the locking element to hold thelatter in an active position, and said looking element being designed toengage the latch element when retracted to limit the movement of theelement in this direction.

2. In combination, a hook including a shank, an enlarged portion formedon said shank and having a longitudinal bore, a

locking element arranged within the bore for both sliding and rotarymovement, said looking element being formed with a notch, said enlargedportion of the shank having a recess including an inclined bottomintersecting said bore, whereby said notch may be arranged Within therecess by rotating the locking element, a latch reposing upon theinclined bottom of the recess and adapted to engage said notch to holdthe locking element in active position, and means for limiting themovement of the latch element when ment having a notch spaced from saidshoulders and adapted to be arranged within sald recess, a latch elementreposing upon the inclined bottom of said recess and adapted to engagesaid notch-to hold the locking element in an active position, and toengage said shoulder to limit the movement of the locking element whenthe latter is retracted, and a plate closing said recess.

In testimony whereof I afiix my signature.

THOMAS J. BOND. V

